2. In the pop-up Insert Table dialog box, set the number of columns and rows of the table size, and finally click OK to exit the dialog box.

3. Select a table, enter the table tool-Design tab, and click the other button of table style.

4. Select the command "New Table Style" in the pop-up drop-down box.

5. The dialog box for creating a new style according to the format setting pops up. Enter the name of the new table style in the name text box, select the classical 1 option in the style basis drop-down box, select the upper border in the border format drop-down list, and finally click OK to exit the dialog box.

6, back to the Word document

The page found that the form has not changed. Let's find out. As in Step 3 above, select a table, enter the Table Tools-Design tab, and then click the Table Style Other button. In the pop-up drop-down box, you will see the "three-line table" we just created in the "custom" group. Click it to apply a style to the selected table.

7. The three-wire watch is finished. After making a three-line table, you can directly apply this style to the basic table.

I hope my answer is helpful to you! Wish you a happy life!